width ASTON MARTIN DB AR1 Q 2003 Owners Guide

F - Owner Maintenance
1-F-15 Only fit the specified tyres. These are designed for the potential speed,
acceleration, handling and braking performance of the car
New tyres should not be fitted to the front wheels in combination with worn
rear tyres as rear end stability will be affected. Consult your Aston Martin
dealer for advice if the rear tyres are also worn.
Each wheel and tyre unit must be balanced dynamically to ensure efficient
steering, optimum tyre wear and maximum ride comfort. Because of the
potentially high speeds, it is essential that wheel balancing is carried out
when new tyres are fitted.
WARNING: Because of the high performance potential of your DB AR1, Aston
Martin strongly recommend replacement of any damaged or worn tyre.
Tread Wear Indicators
Tread wear indicators are incorporated
into the construction of all tyres. These
indicators are integral moulded ribs
spaced at regular intervals around the
circumference of the tyre and extend
across the full width of the tread, in all
primary grooves.
When a tyre has worn causing one or more of the indicators to be flush with
the outer face of the tread, only 1.6mm (0.062in) or less tread depth remains
and the tyre has reached its wear limit. It then becomes illegal in certain
countries and must be replaced.